Equipment information

Commodore MPS 1224C Printer
Manufacturer:
Commodore
Model: MPS 1224C
Date: 1988
Category: Computer equipment
Group: Printer
Description: Matrix Printer
Information:

The MT222 Matrix Printer has been developed for daily correspondence purposes in the office. It has been manufactured according to the highest possible standards and, with proper use, it should provide troublefree operation for many years. Two high-performance print qualities as well as operation with fanfold paper and cut sheets can be chosen. The following print qualities are available: ■ Draft Print Quality (DPQ): 24 x 9 matrix ■ Letter Quality (LQ): 24x26 matrix The electronic part which is controlled by a microcomputer operates needle print head, menu programming, and interfaces. All parts of the Printer control are arranged on a printed circuit board so that only few additional components are required as ■ stepping motor for carriage driving, ■ stepping motor for paper feed, ■ needle print head with 24 needles. Further requirements are met by the Printer with the following options: ■ sheet feeder ■ multi-colour ribbon ■ font cards

These manuals are available for the above equipment:

Manual Type: Service Manual Commodore-9156-Manual-Page-1-Picture
Pages: 103
Size: 5.40 Mbytes (5664400 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date: 01 November 1988
Quality: Scanned document, reading partly badly, partly not readable.
Upload date:
MD5: 9c7c81c70687b324dc7d8c42d7c7e69f
Downloads: 191 since 04 August 2017
Information:

Chapter 1 Introduction ... 1 -1 Chapter 2 Specifications ... - ... 2-1 Chapter 3 Functional Description ... 3-1 3.1 Mechanical Functions ... 3-1 3.1.1 Print Head ... 3-2 3.1.2 Print Head Movement ... 3-3 3.1.3 Ribbon Drive ... 3-4 3.1.4 Paper Feed ... 3-5 Clutch Lever ... 3-6 3.1.5 Sensors ... 3-7 Home Position Sensor ... 3-7 Paper End Sensor ... 3-8 Auto Load Switch Sensor ... 3-8 3.2 Electronic Functions ... 3-9 3.2.1 Power Supply Unit ... 3-10 Noise Filter Block ... 3-10 Rectification Circuit Block ... 3-10 Converter Circuit Block ... 3-11 Overvoltage Protection Circuit Block ... 3-11 Bias Circuit Block ... 3-11 Output Voltage Detection Block ... 3-12 PWM Circuit, Driver Circuit, Overcurrent Protection Circuit ... 3-12 Power Supply Circuit Diagram ... 3-12 3.2.2 Control Module ... 3-13 MPU and Related Circuit ... 3-13 Memory Configuration ... 3-13 Reset Circuit ... 3-14 Head Drive Circuit ... #15 Carriage Motor Drive Control Circuit ... 3-16 Paper Feed Motor Drive Control Circuit ... 3-17 Interface - Parallel I/O ... 3-18 Interface - Serial I/O ... 3-20 Chapter 4 Test Modes ... 4-1 4.1 Self-Test Mode ... 4-1 4.2 Hex Dump Mode ... 4-2 4.3 Software and Hardware Ident ... 4-2 Chapter 5 Disassembly and Reassembly ... 5-1 5.1 Removing the Top Casing ... 5-2 5.2 Removing the Power Supply Unit ... 5-5 5.3 Removing the Main Control P.W.B ... 5-6 5.4 Disassembly and Reassembly of Printer Mechanism ... 5-8 5.4.1 Removing the Print Head ... 5-8 5.4.2 Mounting and Adjusting the Print Head ... 5-10 5.4.3 Removing the Carriage Stepping Motor Block ... 5-12 5.4.4 Mounting the Carriage Stepping Motor Block ... 5-14 5.4.5 Removing the Paper Feed Stepping Motor Block ... 5-17 5.4.6 Removing the Carriage Home Position Sensor Block ... 5-20 5.4.7 Mounting and Adjusting the Carriage Home Position Sensor Block ... 5-20 Chapter 6 Maintenance ... 6-1 6.1 Tools and Measuring Instruments Required ... 6-1 Tools ... i ... 6-1 Measuring Instruments ... 6-1 6.2 Maintenance ... 6-1 Cleaning ... 6-1 Checks ... 6-2 6.3 Lubrication ... 6-2 Types of Lubricants ... 6-2 Lubrication Standards ... 6-2 Parts to Lubricate ... 6-2 Chapter 7 Troubleshooting ... 7-1 Troubleshooting Procedures ... 7-1 Chapter 8 Spare Parts and Schematics ... 8-1 Chapter 9 Options - Spare Parts and Schematics ... 9-1 9.1 Removing the Colour UniL ... 9-2 9.1.1 Colour Printing Adjustment ... 9-3 9.1.2 Fuse Replacement ... 9-3 9.2 Colour Unit Parts ... 9-5 9.3 Colour P.W.B ... : ... 9-6 9.4 Single-Bin Sheet Feeder Parts ... 9-9 9.5 Two-Bin Sheet Feeder Parts ... 9-11 9.6 Motor Driver P.W.B ... 9-12

Commodore-9156-Manual-Page-1-Picture


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